1. Which cold and dense air blowing down the mountain slope during the night?
2. Which chemically inactive gas present in the atmosphere?
3. When can one record the lowest temperature of air?
4. Which layer of the atmosphere provides ideal conditions for flying of jet aeroplanes?
5. What happens when a sudden fall in the barometric reading?
6. What do the contact of two air masses differing sharply in humidity originate?
7. The cauliflower shape is associated with which cloud formations?
8. In the earth's atmosphere, what changes in the atmospheric pressure?
9. The dry wind 'Santa Ana' blows in which country?
10. Northern part of Australia is typified by which climate?
11. Where are a large number of species are found within a small unit of area?
12. Which ecosystem covers the largest area of the earth's surface?
13. Which climatic factor which has the least effect upon a terrestrial ecosystem?
14. Which type of climate is known for the maximum diurnal range of temperature?
15. Which country celebrates Christmas festival in summer season?
16. Which is an example of Midlatitude desert?
17. Where are the Postaz temperate grassland?
18. Long treeless grassy palms are characteristics of which grass?
19. Which is the zones of excessively dry climate with very cold temperature throughout the year?
20. Which region specialises in the cultivation of citrus fruits?
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